24LC04B-I/SN Microchip Technology, 24LC04B-I/SN Datasheet - Page 8
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24LC04B-I/SN
Manufacturer Part Number
24LC04B-I/SN
Description
IC EEPROM 4KBIT 400KHZ 8SOIC
Manufacturer
Microchip Technology
Specifications of 24LC04B-I/SN
Memory Size
4K (2 x 256 x 8)
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 85°C
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Organization
2 Block x 256 x 8
Interface Type
I2C
Maximum Clock Frequency
0.4 MHz
Access Time
900 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.5 V
Maximum Operating Current
5 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
24LC04B-I/SN
Manufacturer:
MICROCHIP
Quantity:
10 000
Company:
Part Number:
24LC04B-I/SN
Manufacturer:
MCP
Quantity:
41 814
Company:
Part Number:
24LC04B-I/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
24LC04B-I/SN
Manufacturer:
MIC
Quantity:
20 000
24AA04/24LC04B
5.0
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally-timed write cycle and ACK polling
can then be initiated immediately. This involves the
master sending a Start condition followed by the control
byte for a Write command (R/W =
busy with the write cycle, no ACK will be returned. If the
cycle is complete, the device will return the ACK and
the master can then proceed with the next Read or
Write command. See Figure 5-1 for a flow diagram of
this operation.
FIGURE 5-1:
DS21708C-page 8
ACKNOWLEDGE POLLING
Initiate Write Cycle
Send Control Byte
Write Command
with R/W = 0
Condition to
Acknowledge
Send Stop
Send Start
(ACK = 0)?
Did Device
Operation
Send
Next
ACKNOWLEDGE POLLING
FLOW
Yes
0
). If the device is still
No
6.0
The 24XX04 can be used as a serial ROM when the
WP pin is connected to V
inhibited and the entire memory will be write-protected.
WRITE-PROTECTION
2003 Microchip Technology Inc.
CC
. Programming will be